Trying to use Aventa 3.12 to tweak my linx2 961's via Noahlink wireless, but

You speak about the two devices like they are the same. But NOAHlink, Is not Noahlink Wireless! In order to avoid confusion over names see the following link for the correct name of this device;
Noah, NOAHlink, or Noahlink Wireless.

Can you post some screen clips?